9.5(b) Notes: The ∆ Angle Bisector Theorem

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9.5(b) Notes: The ∆ Angle Bisector Theorem Date: 9.5(b) Notes: The ∆ Angle Bisector Theorem Lesson Objective: Use the ∆ Angle Bisector Theorem to find segments. CCSS: G.SRT.4, 5 You will need: colored pens, a calculator This is Jeo- pardy!!!: Find the value of x.

Lesson 1: Triangle Angle Bisector Theorem Draw acute ∆JKL with a ruler in PENCIL. Bisect / J using black ink. Label the angle bisector JM. K J L

Lesson 1: Triangle Angle Bisector Theorem Draw acute ∆JKL with a ruler in PENCIL. Bisect / J using black ink. Label the angle bisector JM. K M J L

Lesson 1: Triangle Angle Bisector Theorem Color over JK and KM in red and JL and LM in blue. K M J L

Lesson 1: Triangle Angle Bisector Theorem K M J L

Lesson 2: Use the Δ Angle Bisector Theorem Find the value of x. A. B.

H/W 9.5 p. 586: 4, 5, 11-14 4. 5.

H/W 9.5 p. 586: 4, 5, 11-14 12. 13. 14.